Hello, I am working on doing stigs for the first time an having a hard time understanding what I'm supposed to be looking for while doing this one section:

Check Text: Interview the System Administrator to review the configuration of the IIS 10.0 architecture and determine if inbound web traffic is passed through a proxy.

If the IIS 10.0 web server is receiving inbound web traffic through a proxy, the audit logs must be reviewed to determine if correct source information is being passed through by the proxy server.

Follow this procedure for web server and each website:

Open the IIS 10.0 Manager.

Click the IIS 10.0 web server name.

Click the "Logging" icon.

Click on "View log files" under the "Actions" pane.

When the log file is displayed, review source IP information in log entries and verify the entries do not reflect the IP address of the proxy server.

If the website is not behind a load balancer or proxy server, this is Not Applicable.

If the log entries in the log file(s) reflect the IP address of the proxy server as the source, this is a finding.

If provisions have been made to log the client IP via another field (i.e., utilizing X-Forwarded-For), this is not a finding.

I can confirm that the server I'm doing the stig on does pass through a proxy and that X-Forwarded-For is set up.

My question is what would be the source IP be?